Porcelain-painting

Use Nickel salts, porcelain painting, fuel cell electrodes. 

Black nickel oxide Bunsenite C.l. 77777 CCRIS 431 Cl 77777 EINECS 215-215-7 Green nickel oxide HSOB 1664 Mononickel oxide Nickel (II) oxide Nickel monoxide Nickel oxide Nickel oxide (NiO) Nickel oxide sinter 76 Nickel protoxide Nickel(2+) oxide Nickel(ll) oxide Nickelous oxide. Used in preparation of nickel salts, in porcelain painting and fuel cell electrodes. Green powder mp = 1960" d = 6.6700 insoluble in H2O soluble in acids. Atomergic Chemetals Cerac Nihon Kagaku Sangyo Noah Chem. 

Calcium resinate Zinc oxide porcelain painting... 

Cobalt chloride (ous) Nickel oxide (ous) porcelain painting, light blue colors Cobalt arsenate (ous) porcelain, decorating Sodium selenite porcelains Zinc carbonate... 

Antimony yellow, or yellow of antimony, was typically a synonym for lead antimony oxide (Lead antimonate or Naples yellow, qq.v.). However, various nineteenth century authors draw a distinction between these. Osborn (1845) for example, states, Yellow of Antimony holds the middle place between chrome yellow and Naples yellow. According to the Manuel, Guimet... has prepared a kind of a fine golden color, more intense than that of Naples Yellow, and that seems to be soUd. The author of the Traite Complet considers Antimony-yeUow preferable to Naples yellow, and quite as solid. Salter (1869) likewise distinguishes antimony yellow from Naples yellow, stating that it was likewise a preparation of that metal, of a deeper colour than Naples yellow, but similar in its properties. It was principally used in enamel and porcelain painting, and differed greatly in tint. ... 

Gallium wets glass or porcelain and forms a brilliant mirror when it is painted on glass. It is widely used in doping semiconductors and producing solid-state devices such as transistors. 

Finishes for aluminum products can be both decorative and useful. Processes in use include anodic oxidation, chemical conversion coating, electrochemical graining, electroplating (qv), thin film deposition, porcelain enameling, and painting. Some alloys respond better than others to such treatments. 

Antimony trioxide and sodium antimonate are added to specialty glasses as decolorizing and fining agents, and are used as opacifiers in porcelain enamels. Antimony oxides are used as white pigments in paints, whereas antimony trisulfide and pentasulfide yield black, vermilHon, yeUow, and orange... 

Abrasion Resistance. Porcelain enamel is the most scratch resistant and hardest of commercial coatings (see Hardness). This property is used to distinguish between porcelain enamel and organic enamel or painted coatings. The rate of abrasive wear in surface abrasion increases with time, and the subsurface abrasion which follows exhibits a higher, but constant rate of wear. Abrasion resistance can be evaluated by loss of gloss or weight (35). 

FIG. 5-12 Variation of absorptivity with temperature of radiation source. (1) Slate composition roofing. (2) Linoleum, red brown. (3) Asbestos slate. (4) Soft rubber, gray. (5) Concrete. (6) Porcelain. (7) Vitreous enamel, white. (8) Red brick. (9) Cork. (10) White dutch tile. (11) White chamotte. (12) MgO, evaporated. (13) Anodized aluminum. (14) Aluminum paint. (15) Polished aluminum. (16) Graphite. The two dashed lines bound the limits of data on gray paving brick, asbestos paper, wood, various cloths, plaster of parts, lithopone, and paper. To convert degrees Ranldne to kelvins, multiply by (5.556)(10 ). 

CoiTosion prevention is achieved by correct choice of material of construction, by physical means (e.g. paints or metallic, porcelain, plastic or enamel linings or coatings) or by chemical means (e.g. alloying or coating). Some metals, e.g. aluminium, are rendered passive by the formation of an inert protective film. Alternatively a metal to be protected may be linked electrically to a more easily corroded metal, e.g. magnesium, to serve as a sacrificial anode. 

For the purpose of paint formulation the most important units of equipment are the laboratory ball mill, bead mills and high speed dispersers. The most common, the ball mill, consists of a cylindrical porcelain vessel a little more than half filled with steel, porcelain balls or pebbles. Pigment, together with sufficient binder and solvent to make a free-flowing mix, is loaded into the mill until it is approximately two-thirds full. The mill is then closed and fixed into a device whereby it is made to rotate about its major axis. Normally, a period of about 16 hours is required for thorough dispersion of the pigment, whereupon the mill-base is emptied out and blended with the remainder of the ingredients. 

For many centuries cobalt was used to color glass, pottery, and porcelain and as an enamel. It is also used as a dye and paint pigment. 

Barium chromate is used as a pigment in paints, ceramics, coloring glasses, fuses, and porcelains as a corrosion inhibitor to prevent elecrochemical corrosion at the joints of dissimilar metals in safety matches in metal primers in ignition control devices in pyrotechnic compositions and as an initiator for explosives. 

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